PHP or Javascript: no element found error

Question

I'm working on a project for school, I have to take data from a db (created on PhPMyAdmin) and create a graphic. I use PHP for get the data and Javascript to create the graphic, but I found and error and I can't get rid of it: when i lunch my html file the graphic structure appears, but it's empty. If I check Firefox console I get the error: ‘no element found’ and it's refered to php file.

PHP code:

<?php
require("conf.php");
$query="SELECT * FROM straniera";
$result=mysql_query($query);
$i=0;
$valori = array();
while($row=mysql_fetch_array($result)) {
    $valori[$i]=$row['2011'];
    $i++;
}
return $valori;
?>

Javascript code that lunch php:

var d = $.ajax({
                   type: "POST",
                       url: 'try.php'
              });
graphic(d);

Your code needs to echo something not return it. However you can't just echo an array like this and expect it to work in javascript — Anigel
– Anigel, Commented Jul 11, 2013 at 15:14

Tong Gao · Accepted Answer · 2013-07-11 16:24:10Z

1

You should change 'return' to 'echo' in php code, and echo something wrapped as html.

<?php
require("conf.php");
$query="SELECT * FROM straniera";
$result=mysql_query($query);
$i=0;
$valori = "";
while($row=mysql_fetch_array($result)) {

    $valori.= "<li>".$row['2011'].</li>;
}
echo $valori;
?>

Ajax should be:

$.ajax({
            type:"GET",
            url:"try.php",
            success: function(data){
                    $("#somediv ul").html(data);
                }
            });

answered Jul 11, 2013 at 16:24

Tong Gao

6216 silver badges9 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

PHP or Javascript: no element found error

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related